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I know that this has probably been covered somewhere on this forum before, but I am having ongoing problems with a lot of moisture accumulating on the inside of my windows when the temps get below 40...

I am having a whole house dehumidifier installed and found out that the extra ventilation supplies for the fresh air intake that include the electronic damper and such is going to cost me quite a bit...

Looking at having this installed and was wondering about the fresh air exchange. Does the fresh air literally come from outside via a duct or is the air somehow filtered and introduced back into the...